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HTML5 Geographical Positioning_Morphological Node Java College

Geolocation is one of the important features of HTML5, which provides the function of determining the location of the user. With this feature, it can develop the application of location information. Today, this article introduces the basic principles of t

2025-03-12
Detailed explanation of the summary of several storage methods of the front end HTML5

Before the overall situation H5, the storage mainly uses Cookies. The disadvantages of cookies are with data on the request head, and the size is within 4K. Lord Domain pollution. Main applications: Shopping carts and customers log in for the IE browser.

2025-03-12
Two common solutions to html text overflow displaying omitted characters

Method 1: Use CSS overflow omission to solve the problem. The solution is as follows: css code: display: -webkit-box; display: -moz-box; white-space: pre-wrap;

2025-03-12
How to trigger functions by using the up, down, left, and right keys on the js keyboard (explanation with examples)

Copy the code code as follows: <script type="text/javascript">function jumpPage() { if (event.keyCode==37)//左 fun_a(); if (event.keyCode==38)/

2025-03-12
A brief discussion on filling in the pitfalls of html5 video on mobile terminals

This article introduces the html5 video mobile terminal filling in the pitfalls and shares it with everyone. The details are as follows:

2025-03-12
Implementation of simple canvas drawing (SpongeBob SquarePants)

I have been studying canvas recently and simply used canvas to draw a cartoon character - SpongeBob SquarePants. The picture is as follows: the code is as follows:<!DOCTYPE html><html><head><meta charset=utf-8 /><title> canvas spongebob

2025-03-12
Introduction to the use of javascript copy node cloneNode()

The cloneNode(a) method accepts a Boolean parameter indicating whether to copy the deep copy true: it means to perform a deep copy, copy the node and the entire child node tree. false: shallow copy. Only copy the node itself. The node copy returned after

2025-03-12
textarea controls the number of input character bytes (sample code)

Control by number of characters: Copy the code as follows:

2025-03-12
JavaScript binds events in the for loop to solve different situations of event parameters

Sometimes it is necessary to respond to a pile of similar events, but the parameters of each event are different. At the beginning, I thought it was very simple. The loop was not available. As a result, the amount was found that the last parameter was use

2025-03-12
Detailed explanation of path and domain attributes in cookies

1.Domain represents the domain where the cookie is located. The default is the requested address. For example, if the URL is www.VeVB.COm/test/test.aspx, then the domain defaults to www.VeVB.COm. For cross-domain access, for example, domain A is t1.test.c

2025-03-12
How to implement sharing of Html5 pages on WeChat

WeChat sharing may seem complicated at first glance, but it is actually very simple. You only need to call the official WeChat jssdk of WeChat and add some configurations to realize the sharing of h5 pages on WeChat. The official document address is: http

2025-03-12
Introduction to the knowledge points involved in Checkbox all selected

1. It works in IE, Firefox does not work.<script type="text/javascript"> function checkALL(str)//全选控制的JS { var a=document.getElemen

2025-03-12
A preliminary study on event proxy in javascript

Events have always been one of the most powerful objects in JavaScript. JavaScript provides two methods, addEventListener and attachEvent, to bind events to DOM nodes. jquery further encapsulates them and provides a bind method compatible with various bro

2025-03-12
Sample code for simple absolute positioning of JS pop-up layer

Copy the code as follows: function doThis() { var a = document.getElementById("addYear"); a.style.left=(document.body.clientWidth/2-a.cl

2025-03-12
Use JavaScript to detect CPU usage and write it yourself

I saw a method of using JS to detect CPU usage in Yu Bo’s Github Issues before, and I thought it was great. I have implemented it myself, and added a function of drawing histograms to visually see the CPU usage. Please see the effect: the portal implement

2025-03-12

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